Remove fastest, default to recommended

[TheGreatRefrigerator]

Recommended and Fastest are basically the same.
Therefore Fastest should be removed.

[marq24]

just for your consideration...

Fastest: [give you a route]
https://maps.openrouteservice.org/directions?n1=46.28086&n2=4.805163&n3=7&a=48.858705,2.342865,43.70313,7.26608&b=1a&c=0&k1=en-US&k2=km

while Recommended [gives you a server error]
https://maps.openrouteservice.org/directions?n1=46.28086&n2=4.805163&n3=7&a=48.858705,2.342865,43.70313,7.26608&b=1a&c=2&k1=en-US&k2=km

so they are not the "same" right now - but i might have [misunderstood] something fundamental

[TheGreatRefrigerator]

We just had a whole meeting on this. Will provide an explanation soon.

[aoles]

while Recommended [gives you a server error]

This happens because the current default routing algorithm which is CH does not support recommended weighting, just fastest. In the case of recommended all routes are computed with the dynamic ALT algorithm which has a distance limit of 300km. You will get the same error for fastest as well as soon as you enable any of the filters, such as avoid=ferries.

We hope to address these shortcomings by switching to CALT which has the performance of CH yet allows the flexibility of ALT.